[1] Vanderbilt Univ, Sch Med, Dept Hlth Policy, 2525 West End Ave,Suite 1200, Nashville, TN 37203 USA
[2] Tennessee Valley Healthcare Syst, Dept Vet Affairs Med Ctr, Nashville, TN USA
[3] City Hope Natl Med Ctr, Div Nursing Res & Educ, Duarte, CA USA
[4] Corporal Michael J Crescenz VA Med Ctr, Vet Experience Ctr, Philadelphia, PA USA
[5] Univ Penn, Leonard Davis Inst, Philadelphia, PA 19104 USA